Dr. Nancy O’Hara

MD

Member, Scientific Advisory Board

Portrait of Dr. Nancy O’Hara, MD, Member, Scientific Advisory Board

Dr. Nancy O’Hara is a board certified Pediatrician. Prior to her medical career, Dr. O’Hara taught children with autism. She graduated with highest honors from Bryn Mawr College and as a member of the Alpha Omega Alpha Honor Society from the University of Pennsylvania School of Medicine. She earned a Master’s degree in Public Health from the University of Pittsburgh. After residency, chief residency and general pediatric fellowship at the University of Pittsburgh, Dr. O’ Hara entered general private practice in 1993, and in 1998 began her consultative, integrative practice solely for children with special needs. Since 1999 she has dedicated her practice to the integrative and holistic care of children with neurodevelopment disorders, ADHD, PANDAS/PANS, OCD, Lyme and Autistic Spectrum Disorder at the Center for Integrative Health, where she is a partner. She is also a leader in the training of clinicians, both in the United States and abroad.

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††U.S.A. Functional Medicine MDs, DOs, NDs, DCs, and Nutrition Professionals surveyed in 2025 for Designs for Health.

¹Sawada D, Kawai T, Nishida K, Kuwano Y, Fujiwara S, Rokutan K. Daily intake of Lactobacillus gasseri CP2305 improves mental, physical, and sleep quality among Japanese medical students enrolled in a cadaver dissection course. J Funct Foods. 2017;31:188-197. doi:10.1016/j.jff.2017.01.042.

²Keystone commensal strains based on the HACK index. 8x comparison based on five keystone strains (up to 24% combined abundance) vs. single-strain Akkermansia  products (~3%). Percentages reflect typical abundance in healthy adult microbiomes per published research. Individual colonization varies.